Preparation of hydrophobic silane/graphene oxide composite coating implanted with benzotriazole to improve the anti-corrosion performance of copper
Chen, Y. 1Liu, Y. W. 2Xie, Y. 2Zhang, H. H. 2Du, X. Q. 1Zhang, Z.3
扫码查看
点击上方二维码区域，可以放大扫码查看
作者信息
1. Foshan Univ
2. Binzhou Univ
3. Zhejiang Univ
折叠
Abstract
Hydrophobic silane/graphene oxide (GO) composite coating implanted with BTAH inhibitor (BTAH-silane/ GO) was successfully fabricated on copper surface, and characterized using ATR-FTIR, Raman, EDS, XPS and EIS techniques. The results showed that GO was successfully covalently reacted with the silanol groups to form a Si-O-C band and BTAH inhibitor was uniformly embedded in the composite coating. The BTAHsilane/GO coated copper possessed the desirable high impedance modulus (Z(0.01 Hz)) of 5.7 M Omega cm(2) and high protection efficiency of 99.97%. The corrosion current density of the coated copper reduced over 3 orders of magnitude compared to its bare in 1 M neutral NaCl solution, and maintained over 99% even after 120 h immersion. In addition, the incorporated BTAH inhibitor exhibited the self-healing performance of BTAH-silane/GO coating in 1 M neutral NaCl solution. (C) 2021 Elsevier B.V. All rights reserved.
NSTL
Elsevier